Maria Marfutina defeated Tatiana Pieri 5-7 6-3 6-1 in the W25 Grenoble round of 32 on hard. The upset overturned the form book — Tatiana Pieri came in leading the head-to-head 1–0. Maria Marfutina claimed a first win over Tatiana Pieri in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-26 | W25+H Bagnatica | Q16 | clay | Tatiana Pieri | 6-0 3-6 10-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.